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s2008m [1.1K]
3 years ago
10

Help me with#7 and #2 please?

Mathematics
1 answer:
worty [1.4K]3 years ago
6 0

7 is bases number two , I'm not sure it sounds like similar makes more sense , but not sure for 2

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Emma is 10 years old. She asked her father how old he was. Her father answered: "When you will be my age, I will be 70." How old
Svetradugi [14.3K]

Answer:

Emmas father would be 40 years old

Step-by-step explanation:

if the father is 40 years old right now emma will be his age in 30 years.

in 30 years emma will be as old as he was when she was ten (10+30=40)

after the 30 years emmas father who was once 40 years when she asked how old he was would be 70 years old (30+40=70)

4 0
3 years ago
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What is the slope of the line passing through the points (−3, 4) and (4, −1)?
raketka [301]
Slope:y2-y1/x2-x1
-1-4/4-(-3)
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Citrus2011 [14]

Answer:

a.

<u>Increasing:</u>

x < 0

x > 2

<u>Decreasing:</u>

0 < x < 2

b.

-1 < x < 2

x > 2

c.

x < -1

Step-by-step explanation:

a.

Function is increasing when it is going up as we go rightward

Function is decreasing when it is going down as we go rightward

We can see that as we move up (from negative infinity) until x = 0, the function is increasing. Also, as we go right from x = 2 towards positive infinity, the function is going up (increasing).

So,

<u>Increasing:</u>

x < 0

x > 2

The function is going down, or decreasing, at the in-between points of increasing, that is from 0 to 2, so that would be:

<u>Decreasing:</u>

0 < x < 2

b.

When we want where the function is greater than 0, we basically want the intervals at which the function is ABOVE the x-axis [ f(x) > 0 ].

Looking at the graph, it is

from -1 to 2 (x axis)

and 2 to positive infinity

We can write:

-1 < x < 2

x > 2

c.

Now we want when the function is less than 0, that is basically saying when the function is BELOW the x-axis.

This will be the other intervals than the ones we mentioned above in part (b).

Looking at the graph, we see that the graph is below the x-axis when it is less than -1, so we can write:

x < -1

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hi how is your day hopes its good and stay safe remember to stay at home and if your going out stay 6 feet apart love you
oksian1 [2.3K]

Thank you love same with you! God bless

3 0
3 years ago
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4
Alenkasestr [34]

Answer:

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